大学英语四级选词填空练习(十一)

Passage OnePop means popular, and a pop singer is supposed to work very hard to become popular. He must either give the public what they already want, or he must find a new way of singing that will H(attract) their attention. Even when he has succeeded, and his G(record) are sold everywhere, he cannot E(relax) _. Then he must work harder than ever to _B(remain)_ popular, because there are always younger singers trying to become famous and to steal some of the popularity.The life of a successful pop singer isn't at all easy. He can only relax when he is A(alone) , because everything he does is watched and reported in the special newspaper, written for the fans. The fans are the most D(important) people in the world for the singer. They buy his records, they go to his conceits, and they make him rich and famous. But they can be very L(annoying) too. Sometimes the tans become so crazy that they do anything to get a "souvenir". They steal handkerchiefs, they tear off buttons, and they even cut off pieces of the unfortunate singer's hair. Many singers have been forced to hide, and some have not been so I(lucky) as to escape being stripped(剥夺)practically C (naked)(裸体) by their fans. A pop singer has to spend a lot of money on clothes, because he must always look smart, or, at any rate, M(different)_. He must have an expensive car. And--most important –he must always keep smiling for the benefit of his public.Passage TwoThe United States is full of A(automobiles汽车). There are still many families without cars, but some families have two or even more. However, cars are used for more than pleasure. They are _H(necessary)_ part of life.Cars are used for B(business) . They are driven to offices and factories by workers who have no other way to get to their jobs. When salesmen are sent to different parts of the city, they have to drive in order to carry their I(products) . Farmers have to drive into the city in order to get supplies.Sometimes small children must be driven to school. In some cities school F(BUSES) are used only when children live more than a mile from the school. When the children are too young to walk that J(far)_, their mothers _G(take)_ turns driving them to school. One mother drives on Mondays, taking her own children and neighbors’ children as well. Another drives on Tuesdays, another on Wednesdays, and so on. This is called forming a car pool(联盟). Men also _C(form) car pools, with three or four men taking turns driving to the place where they all work.More car pools should be formed in order to put fewer automobiles on the road and to use less D(gasoline)_. Parking is a great problem, and so is the _E（traffic）_ in and around cities. Too many cars are being driven. Something will have to be done about the use of cars.Passage ThreeDon't try kicking the tires(轮胎) on a very modem and strange car developed by students at Coventry University. Not only does the car have no tires, it has no B(steering掌舵) wheel（车轮，方向盘）, either.The Coventry Concept(概念) Car, as it is called is a __C (completely)__ new design that looks more like a snail(蜗牛) than an automobile. No working model（模型）, or functional（功能的）form of the _D(vehicle车辆) exists yet, but its designers recently introduced a life-sized model and explained how a real one would work.Electric motors would move rapidly undulating pad (形成波浪状气垫) A（underneath底层的）the car; moving the vehicle in any direction at speeds up to 480 km per hour. The motion would be a much faster way of L （crawling速率）, the way snails move. (Muscles in the bottom of a snail's flat foot _K(contract)__ in waves that push the snail along the ground.)Steering of the snail car would be _H(handled有把柄的) automatically by an onboard computer, which would receive signals from orbiting satellites. Those signals would help guide the snail car along a preprogrammed _ J(_route)_,Even the car's color could be computer-controlled, the student designer suggested. Instead of a painted-out _I(appearance)_, the snail car would sport (显示) an electronically sensitive film that changes color according to its _G(surroundinf)_ .Passage FourNot all language is verbal. Some of our J(communication) occurs(发生) without words. We often use our entire(全部) bodies for communication. We may raise our eyebrows to C(indicate) surprise. Perhaps we nod our heads to show that we agree with something. There are hundreds of nonverbal(非口头) H(signals信号，标志) that can be used to communicate. These signals are part of language, and they are G(governed管理支配) by rules in the same way that our spoken language is. For this reason, people who speak different languages often use different nonverbal signals as well.In addition to verbal communication and the type of nonverbal communication discussed above, there are other message I(systems) that we use to communicate. When we speak to some people, we may stand very A(close)them, while we may stand far away from other people. Use of space, then, is a way we can communicate(B(relationship) another person. The way we _D(dress)so communicate for us. The person who wears dirty jeans and a T-shirt communicates a different E(attitude) from a person who wears neat trousers and an attractive shirt. We can even use time to communicate. The person who is on time for an F(appointment) shows a different attitude from the person who is an hour late does. Can you think of other message systems we use in communication?Passage FiveHow can English teachers accelerate(加快|) the language teaming of their students? One way is to teach students how to learn more effectively and efficiently. Learning strategies(策略) are ―procedures or _A(techniques)_ that learners can use to facilitate(促进) a learning task.‖ B(instructing指导) students of English in learning strategies can help them become better learners. In addition, skill in using learning strategies assists students in becoming G(independent) , confident learners. Finally, students become more I(motivated) as they begin to understand the relationship between their use of strategies and success in learning English.Students need to develop an awareness of the learning process and strategies that lead to success. Students who C(reflect反映) on their own thinking are more likely to engage in planning how to proceed with a learning task, monitoring their own performance on an ongoing basis, finding solutions to problems _F(encountered遇到)_, and evaluating themselves upon task completion. These activities may be difficult for students __J(accustomed使习惯)_ to having a teacher who solves all their learning problems and is the O (sole基础，触底，唯一)_ judge of their progress.Teachers need to encourage students to rely more on themselves. Because learning strategies are mental N(processes)__ with few observable manifestations, teachers need to find ways to make the strategies as concrete as possible. When students are able to use the strategies their teachers have taught them, and to do so without prompting, then they need to _ M(explore) new strategies, new applications, and new opportunities for self-regulated learning.Passage SixAn unusual cooperation(合作) between the local university and other education providers in East Anglia has seen the C (establishment) of Norwich's new Learning Shop. At the city center shop, local people can look through booklets and leaflets to find out about learning opportunities G(ranging)__ from evening classes to postgraduates degrees. Skilled staff is on hand to give _I(accurate)_ information about courses and training in the region.More than 11,000 people have visited the shop since it opened in 1997. The majority of inquiries have been about courses in further education, but 17 percent have _ H(related)__ to higher education in general. Customer feedback J(confirms)_ how valuable the resource is. A woman’s F(comment评论，意见) is typical: ―It's a brilliant idea—less daunting than going to the different institutions.‖ A seller told us: ―This really gives you hope you can get back into something.‖Fellow _E(institutions体系) are welcome to set up exhibitions and events at the shop: to date, these have included poetry readings, a recorder concert and D(numerous许多的) exhibitions and displays. The shop is staffed by two advisers and other colleagues from the fellow institutions in the region. Speaking at the "Norwich as a Learning City" _B(conference会议，协商) . Prof. Mike Campell at the local university, said the first barrier to learning was lack of information. The Learning Shop aims to break down that _ A(barrier)) .There is a popular belief among parents that schools are no longer interested in spelling. No school I have taught in has ever K(ignored) spelling or considered it unimportant as a basic skill. There are, however, vastly different ideas about how to teach it, or how much G(priority优先) it must be given over general language development and _F(writing)_ability. The problem is how to encourage a child to express himself freely and E(tend) in writing without holding him back with the complexities of spelling.If spelling becomes the only focal point of his teacher's interest, clearly a bright child will be likely to "play safe". He will A(confidently)_ to write only words within his spelling range, choosing to B(avoid) adventurous(危险) language. That's why teachers often encourage the early use of dictionaries and pay attention to C(content内容目录满足) rather than technical ability.I was once shocked to read on the bottom of a sensitive piece of writing about a personal experience: "This work is terrible! There are far too many spelling errors and your writing is illegible（难于辨认的）." It may have been a sharp criticism批评of the pupil's technical abilities in writing, but it was also a sad reflection on the teacher who had omitted遗漏省去to read the essay, which contained some beautiful expressions of the child's deep feelings. The teacher was not wrong to draw attention to the D(errors) , but if his priorities had M (centered居中的) on the child's ideas, an expression of his disappointment with the presentation would have given the pupil more motivation to seek _N(improvement) .Passage EightJust like children, deer often cross British roads to get to the other side. But the cost is the deer's life. At night, _ E(speeding)_ cars hit and kill the animals. Now foresters are using natural animal D(instinct本能)_ to prevent dangerous crossings.In England, the British Forestry Commission has B(installed(安装) thousands of glowing red ―wolf eyes‖ along woodland roads. The eyes are actually reflectors (反射镜), _C(plastic)__ bars like the red reflectors on your bike. The ten-centimeter long bars are fixed on top of posts, with only these signs directed towards the woods rather than the roads.When cars speed by, light rays from car headlights reflect off the reflectors' shining surface and I(flash) into the woods. Deer are instantly(马上) _A(scared) by the wolf eyes—even though wolves haven't _J(hunt) deer in Britain or even lived there for a hundred years!Scientists think the glowing(灼热的) light K(imitate模仿) the "eye shine" of nightly beasts. (Y ou've probably seen eye shine on cats. Mirror-like cells in the eyes N(reflect) some light that hits them.) The deer must not have ―forgotten‖ that a wolf can run up to 72 km per hour in M(hot) pursuit, or can sniff deer out from 2.4 km away.Passage NineIt was once believed that being overweight was healthy, but nowadays few people subscribe to this viewpoint. While many people are fighting the battle to reduce weight studies are being conducted concerning the _A(appetite食欲)__ and how it is controlled by both emotional and biochemical factors. Some of the _B(conclusion))__ of these studies may give insights into how to deal with weight problems. For example, when severe hundred people were asked about their eating habits in times of stress, 44 percent said they reacted to stressful situations by eating. Further investigations with both humans and animals indicated that it is not food which F（relieves）tension but rather the act of C(chewing) .A test in which subjects were blindfolded showed that obese (肥胖的)people have a keener sense of taste and crave (渴望) more flavorful food than non-obese people. When deprived of the variety and _D(intensity强度强烈) of tastes, obese people are not satisfied and consequently eat more to E(fulfill) this need. Blood G(samples)__ taken from people after they were shown a picture of food revealed that overweight people reacted with an increase in blood insulin (胰岛素), a chemical (associate) J with appetite. This did not happen to average-weight people.Exercise has been (recommended)I as an important part of a weight-loss program. However, it has been found that mild exercise, such as using the stairs instead of the H(elevator)电梯, is better in the long run than taking on a strenuous program, such as jogging, which many people find difficult to continue over long periods of time and which also increases appetite.Passage T enThe first practical pen with reservoir is credited to Lewis Edson Waterman, a 45-year-old American insurance broker in 1884. The story goes that he was getting ready to sign a E(vital与..竞争)_ contract on a building site and had bought a new pen for the (occasion)K feeling that it would _ L(create) a good impression and be more convenient for the circumstances than the more usual dip nib pen. The C(contract) was on the table, and the pen was in fee client's hand. Once, twice and even a third time the pen refused to write and then it made an ink blot on the important paperwork. Mr. Waterman returned to his office in all M(haste赶快)_, obtained a fresh contract and returned to the site—a (rival比得上)A_ broker had beaten him to it and the client had signed a contract with the competitor.Waterman refused to be caught out again in like fashion and having an inventive mind designed his own pen and commenced to produce them in his brother's （workshop车间）O_. His design was based upon the physical force of capillarity where air replace the ink used giving a smooth, even, blot free flow. His idea was patented in 1884 but he continued to sell insurance while B（manufacturing）just a few hundreds pens per year. However, Waterman saw the _D(benefits) of advertising and sales increased rapidly. Gold nibs were H(obtains获得) from New Y ork and in 1900 a factory was built in Montreal, Canada to make the pens.。

大学英语四级选词填空专项训练题目及答案今日为大家预备的是大学英语四级选词填空专项训练的题目及答案，希望对大家的四级考试备考有关怀。

Modern people have far more gum disease than our predecessors, according to a British study of skulls published Friday. The surprise findings provide further (1)_______ that modern habits such as smoking are damaging to oral health.Gum disease, also known as periodontitis (牙周炎), is the (2) _______ of a chronic inflammatory (发炎的) response to the build-up of dental plaque (牙菌斑). Whilst much of the population lives with mild gum disease, (3) _______ such as tobacco smoking or medical conditions like diabetes can trigger more (4) _______ chronic periodontitis, which can lead to the loss of teeth.The study, published in the British Dental Journal, (5) _______ 303 skulls from a Romano-British burial ground in England, for evidence of dental disease. Only 5 percent of the skulls showed (6) _______ of moderate to severe gum disease, compared to todays population of which around 15-30 percent of adults have chronic progressive periodontitis.According to experts, this (7) _______ population was non-smoking and likely to have had very low levels of diabetes mellitus (糖尿病), two factors that are known to (8) _______ increase the risk of gum disease in modern populations. Among the people who survived into adulthood, the peak age at death appears to have been in their 40s. Infectious diseases are thought to have been a common cause of death at that time.Experts concluded that, this study shows a major deterioration in oral health between Roman times and modern England. By underlining the probable role of smoking, (9) _______ in determining the susceptibility to progressive periodontitis in modern populations, there is a real sign that the disease can be (10) _______.A) severe B) avoided C) trend D) examinedE) especially F) result G) course H) justifiedI) ancient J) signs K) evidence L) normalM) determined N) greatly O) factors答案：1. K) evidence2. F) result3. O) factors4. A) severe5. D) examined6. J) signs7. I) ancient8. N) greatly9. E) especially10. B) avoided四级选词填空练习题科技类While still relatively novel in the United States, so-called green roofs urban rooftops covered with grasses, plants and other types of greenery are becoming increasingly popular around the world.The logic is obvious: Green roofs can help to cool down buildings and pull some carbon dioxide from the air and feed it back into plant (1)_______.But the (2)_______ benefits of green roofs to busy office workers may also be substantial. Kate Lee and a group of colleagues found that (3)_______ anattention-demanding task with a 40-second microbreak in which one simply looks at a computerized (4)_______ of a green roof improved focus as well as subsequent performance on the task.In the research, 150 students were asked to perform a demanding task called the Sustained Attention to Response Task (SART). In the task, respondents view a (5)_______ of individual numbers, between 1 and 9, on a computer screen. Each number flashes by very (6)_______ and the research subject has to press a particular key as fast as possible unless, the number is 3. In that case, subjects have to catch themselves and not respond which is difficult to do, given the habit built up of repeatedly and quickly (7)_______ the key.In the current study, students had to (8)_______ the SART task not once, but twice. However, they received a 40-second microbreak in between the two trials. During that break, their computer screens flashed either to a digital image of a city building roof covered in (9)_______, or one covered with grass and flowers. Then, they completed the remainder of the SART trial.Afterward, the students (10)_______ to the green roof scene not only reported that it felt more restorative (恢复健康的), they performed better on the task. In particular, they showed less fluctuation in response time, and made fewer errorsA) series B) clicking C) imageD) concrete E) interrupting F) fairlyG) growth H) total I) exposed J) completeK) panic L) explained M) rapidlyN) relation O) psychological答案：1. G) growth2. O) psychological3. E) interrupting4. C) image5. A) series6. M) rapidly7. B) clicking8. J) complete9. D) concrete10. I) exposedAlthough progress has been made, equality between male and female professionals remains a critical issue.According to a (1) _______ released by global recruitment specialist group Hays on Tuesday, women are less likely than their male co-workers to believe that pay equality and (2) _______ opportunities exist for both genders in the workplace.Hays polled 521 professionals, 55 percent of whom were female. Only 7 percent of women aged 25 or under think there is (3) _______ inequality of pay. But as they progress in their career, that number (4) _______. About 29 percent of women aged between 26 and 40, and 35 percent of women aged 41 or above think there is gender inequality of pay.In general, transport and distribution, mining and (5) _______, as well as professional services, drew the most negative answers among both male and female professionals (6) _______ equal pay.But the (7) _______ of polled men think that the situation is not that bad, as only 13 percent of them think that equally capable men and women are not paid or (8) _______ equally.This suggests that most people in executive and (9) _______ management roles-the majority of whom are men-still fail to see any inequality when it comes to pay and career opportunities between the sexes. This makes it difficult to see how we will see any significant advancement in this area while the majority of people in senior roles do not (10) _______ it as an issue, said Christine Wright, managing director of Hays.A) declines B) senior C) concerningD) majority E) rewarded F) resourcesG) advanced H) determining I) recognizeJ) increases K) survey L) identityM) equal N) totally O) gender答案：K) surveyM) equalO) genderJ) increasesF) resourcesC) concerningD) majorityE) rewardedB) seniorI) recognize。

英语四级选词填空练习题及答案英语四级选词填空练习题及答案：There is evidence that the usual variety of high blood pressure is,in part,a familiar disease.Since families have similar genes as well as similar environments,familiar diseases could be due to shared genetic influences,to shared environmental factors,or to both.For some years,the role of one environmental factor commonly shared by families,namely dietary salt(i.e.,sodium chloride),has been studied at Brookhaven National Laboratory.These studies suggest that chromic excess salt ingestion can lead to high blood pressure in man and animals.Some individuals,however,and some rats consume large amounts of salt without developing high blood pressure.No matter how strictly all environmental factors were controlled in these experiments,some salt-fed animals never developed hypertension whereas a few rapidly developed very severe hypertension followed by early death.These marked variations were interpreted to result from differences in genetic constitution.By mating is successive generations only those animals that failed to develop hypertension from salt ingestion,a resistant strain(the "R" Strain)has been evolved in which consumption of large quantities of salt fails to influence the blood pressure significantly.In contrast,by mating only animals that quickly develop hypertension from salt,a sensitive strain("S" strain)has also been developed.The availability of these tow strains permits investgations not heretofore possible.They provide a plausible laboratory model on which to investigate some clinical aspects of the human prototypes of hypertension.More important,there might be the possibility of developing methods by which genetic susceptibility of human beings to high blood pressure can be defined without waiting for its appearance.Radioactive sodium 22 was an important "tool" in working out the characteristics of the sodium chloride metabolism.1.The study of the effects of salt on high blood pressure was carried out ______.a.as members of the same family tend to use similar amounts of saltb.to explore the long-term use of a sodium based substancec.because it was proven that salt caused high blood pressured.because of the availability of chemically pure salt and its derivatives2.The main difference between "S" and "R" rats is their ______.a.need for sodium 22b.rate of matingc.reaction to saltd.type of blood3.We can infer from the article that sodium 22 can de used to ______.a.control high blood pressureb.cure high blood pressure caused by saltc.tell the "S" rats from the "R" ratsd.determine what a sodium chloride metabolism is like4.The most beneficial results of the research might be ______.a.development of diets free of saltb.an early cure for high blood pressurec.control of genetic agents that cause high blood pressured.the early identification of potential high blood pressure victims5.Which of the statements best relates the main idea of this article?a.When salt is added rats and human beings react similarly.b.The near future will see a cure for high blood pressure.c.The medical field is desperately in need of research.d.A tendency toward high blood pressure may be a hereditary factor.答案：acddd英语四级选词填空练习题及答案：Directions: In this section, there is apassage with ten blanks. You are required to select one word for each blankfrom a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices. Each choice in the bankis identified by a letter. Please mark the corresponding letter for each itemon Answer Sheet2 with a single line through the centre. You may not use any ofthe words in the bank more than once.What is itabout Americans and food? We love to eat, but we feel1__________ about itafterward. We say we want only the best, but we strangely enjoy junk food.Were 2__________ with health and weight loss but face an unprecedented epidemicof obesity(肥胖). Perhapsthe3__________ to this ambivalence(矛盾情结) lies in our history. The first Europeans came to this continentsearching for new spices but went in vain. The first cash crop(经济作物) wasnt eaten but smoked. Thenthere was Prohibition, intended to prohibit drinking but actually encouragingmore 4__________ ways of doing it.Theimmigrant experience, too, has been one of inharmony. Do as Romans do meanseating what “real Americans” eat, but our nations food has come to be 5__________ byimports—pizza, say, or hot dogs. And some of the countrys most treasuredcooking comes from people who arrived here in shackles.Perhaps itshould come as no surprise then that food has been a medium for the nationsdefining struggles, whether at the Boston Tea Party or the sit?ins at southernlunch counters. It is integral to our concepts of health and even moralitywhether one refrains from alcohol for religious reasons or evades meat forpolitical 6__________But strongopinions have not brought 7__________ . Americans are ambivalent about what theyput in their mouths. We have become 8__________ of our foods, especially as welearn more about what they contain.The 9__________ infood is still prosperous in the American consciousness. Its no coincidence,then, that the first Thanksgiving holds the American imagination in suchbondage(束缚). Its whatwe eat—and how we 10__________ it with friends, family, and strangers—that helpdefine America as a community today.A. answerB. resultC. shareD. guiltyE. constantF. definedG. vanishH. adaptedI. creativeJ. beliefK. suspiciousL. certaintyM. obsessedN. identifyO. ideals答案：1.E)essence2.H)doubles3.A)components4.K)devices5.O)technique6.F)inspiration7.L)manufacture8.I)solution9.C)standards10.B)advantage。

（完整版）CET4选词填空练习题汇总英语四级选词填空练习题(1)What is it about Americans and food? We love to eat, but we feel _ 1 _ about it afterward. We say we want only the best, but we strangely enjoy junk food. We're 2 with health and weight loss but face an unprecedented epidemic of obesity(肥胖). Perhaps the 3 to this ambivalence(矛盾情结) lies in our history. The first Europeans came to this continent searching for new spices but went in vain. The first cash crop(经济作物) wasn’t eaten but smoked. Then there was Prohibition, intended to prohibit drinking but actually encouraging more 4 ways of doing it.The immigrant experience, too, has been one of inharmony. Do as Romans do means eating what “real Americans”eat, but our nation’s food has come to be 5 by imports—pizza, say, or hot dogs. And some of the country’s most treasured cooking comes from people who arrived here in shackles.Perhaps it should come as no surprise then that food has been a medium for the natio n’s defining struggles, whether at the Boston Tea Party or the sit-ins at southern lunch counters. It is integral to our concepts of health and even morality whether one refrains from alcohol for religious reasons or evades meat for political 6 .But strong opinions have not brought 7 . Americans are ambivalent about what they put in their mouths. We have become 8 of our foods, especially as we learn more about what they contain.The 9 in food is still prosperous in the American consciousness. It's no coincidence, then, that the first Thanksgiving holds the American imagination in suchbondage(束缚). It's what we eat—and how we 10 it with friends, family, and strangers—that help define America as a community today.A. answerB. resultC. shareD. guiltyE. constantF. definedG. vanishH. adaptedI. creativeJ. beliefK. suspiciousL. certaintyM. obsessedN. identifyO. ideals答案详解：1. D feel是一个系动词，可以判断此处应填入一个形容词，通过上下文意思，以及后面介词about, 可以确定选项为D项guilty, 短语feel guilty about sth. "对……感到有愧"。

Directions: I n this sect ion, there is a passage with ten bla nks. You are requested to select one word for each bla nk from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on An swer Sheet 2 with a sin gle line through the cen tre. You may not use any of the words in the bank more tha n on ce.Questio ns 47 to 56 are based on the follow ing passage.(1)Once the world embraced the automobile, the days of depending on horses, bicycles, ferries, and trains quickly slipped into the past. People were __47__ with the speed of the automobile but they were also enjoying the pers onal freedom that the automobile gave them. Owning a car gave people the freedom to go an yplace a road __48__. This allowed people to and at their own __49__. This in depe ndence gave the car a popular edge over buses and trains. The popularity of the automobile made it the __50__ of the transportation system. The automobile cha nged our lives whe n it created a gia nt in dustry that offered more and more jobs. The automobile made it possible for people to live in areas __51__ from their work place. This caused cities to grow and made suburban living more convenient. Of course, with more places to go, more __52__ roads had to be built. The automobile caused a __53__ effect. Jobs in creased, in dustries grew, new in dustries developed, and cities appeared. Today the automobile industry continues to offer many __54__. Jobs are plentiful in this industry and improveme nts con ti nue to be made to the automobile with new tech no logies.We have come a long way from that first __55__ carriage because of the cooperative efforts of many people in the last century. It will be interesting to see what the future holds for the automobile. We have already seen sig ns of the use of solar en ergy in this area. As long as man has a brain, the future of the automobile is __56__.(2)A college education is an investment in the future. But it can be a 47 one. The College Board _48 that the costs at a four-year public college in the Un ited States in creased 10% this past school year. That was less than the 13% in crease the year before, but still much higher tha n the in flati on 49 Public colleges and universities still cost a lot less than private ones.Financial aid often helps. But financial experts —50—parents to start college savings plans when their child is Still very young.All fifty states and the District of Columbia 51 what are called 5-29 pla ns. These pla ns are n amed after the part of the federal tax law that created them in 1996. States use private in vestme nt compa nies to operate the 52_of the programs.Every state has its own rules __ 53—5-29 plans. Some of the plans are —54—of state taxes. And all arenot required to pay federal taxes. However, the government could start to tax withdrawals in 2011 if Congress does not cha nge the law.5-29 pla ns in clude in vestme nt acco unts that i ncrease or decrease in value with the in vestme nts they con tai n. Families must decide how 55 they want to put money into stocks, or other in vestme nts.Another kind of 5- 29 plan lets parents begin to pay for their child 56' sie d ucagdoefore their child starts college. This kind of savi ngs program is called a prepaid tuiti on pla n. The money goes into an acco untThere is progress toward a possible treatment for lung diseases such as SARS (severe acute respiratory syndrome). Researchers have learned more about how the SARS virus works: it 47 with a system in the body that uses enzymes (酶)to control blood pressure and fluid balanee. Scientists say the virus 48 to an enzyme known as ACE-two. The virus blocks the enzyme, permitting fluid to enter the lungs.A team from Europe and Asia reported the 49 in Nature Medicine. Doctor Josef Penninger of the In stitute of Molecular Biotech no logy in the Austria n Academy of Scien ces was the 50 writer of the report. The discovery could lead to a new 51 of treati ng not just SARS but also other diseases that can cause lung failure. These in clude avia n flu ( 禽流感)and in flue nza in huma ns.The first 52 of SARS were discovered in Guangdong prov in ce, in souther n China, in November of 2002. SARS was not 53 as a worldwide threat until March of 2003. The disease spread to 26 cou ntries, most of them in the Asia-Pacific area. An estimated 8, 000 people had SARS. More than 770 of them died, or about 10% , a 54 high rate.The World Health Organization warned people not to travel to 55 areas. The 56 hurt international travel and bus in ess. The WHO says the disease stopped spreadi ng by July of 2003. As a result of SARS, the health age ncy got new powers to act before a gover nment officially announ ces a crisis.(4)To call something marginal" means it is not very good. Farmers have their own way to 47 marginal land: It is the last to be pla nted un der good con diti ons, and has the 48_to be avoided un der poor con diti ons. Low 49 soil is not the only reas on land could be con sidered margin al. It might be in an area where rain fall is 50—or where a hillside might rise too steeply.There are uses for margin al la nd, however. Most often it is used as grassla nd. Grasses provide excelle nt 51一for grazing (吃草)animals like cattle, sheep and goats. Grass seed can be bought from a foreign supplier or52_grasses can be used. However, using marginal land for grazing is not a simple issue. There is a 53 of overgrazing. Cattle can damage the crops by eating down to the roots. Also, the weight of the animals crushes the soil and can make it too hard for grow ing. A( n) 54 way to reduce the harm is to move an imals from one field to another. This method is known as rotational grazing (循环放牧)which is extremely important for marginal Ian d.Ano ther use for margin al la nd is for tree crops. Studies have 55 that the white pine and loblolly pine (火炬松)are two kinds of trees that grow well on such land. They grow fast and provide good quality wood. Another tree is the poplar (白杨),found in many parts of the world.Failure to take the care needed to protect marginal lands can make a bad situation worse. But goodChina is casti ng such a huge shadow on the Un ited States that many America ns are trying hard to lear n the Chin ese Ian guage with an effort to keep their competitive edge."Interest in learning Chinese among American youth and their parents has grown 47 in the past five years," said Vivie n Stewart, vice preside nt at the Asia Society, a US group trying to bridge the 48 betwee n America ns and the peoples of Asia and the Pacific.China's rapid progress is driving the interest to 49 the Ianguage, experts say. "The Chinese rich cultural traditi ons and 50 ec onomy mean that it is now esse ntial for all of our stude nts to be better prepared to engage them and seize opportunities together," said Michael Levine, Asia Society' s executive director of educati on.A 2004 College Board survey found that 2,400 high schools--an 51 number--would be interested in 52_the Adva need Placeme nt (AP) courses in Chin ese Ian guage and culture whe n the courses become available in 2006.China, the world' s most populous ( 人口稠密的)nation, is 53 to the United States because it is a leadi ng trader, con sumer and in vestor. It has 54 the Un ited States as the world's largest con sumer and could become the sec ond largest economy in the world, in the n ext two to three decades.Even though the US State Departme nt has regarded the Chin ese Ian guage extremely importa nt to n ati onal prosperity , the" 55 c on diti ons to support recruitme nt of stude nts and teachers as well as the growth of high quality programs is 56 in adequate," an Asia Society study says.Can money buy happ in ess? Yes, 47 the authors of a new study---but only to a point.Psychology has show n that richer people gen erally rank the overall quality of their lives more 48 tha n poorer people do. At the same time, their actual happ in ess seems to be 49 less by their ability to buy more tha n by being able to keep up with those with comparable resources in their own age group."Our findings point to the possibility that, rather tha n promoti ng overall happ in ess, con ti nued in come growth could —50—an ongoing consumption race where people have to consume more and more, just to mai nta in a 51 level of happ in ess," writes Gle nn Firebaugh of Penn sylva nia State Un iversity.The study was 52 at the America n Sociological Associati on's 100th Annual Meeti ng. Whether the rich are happier as a whole tha n their less 53 fellows is beco ming an in creas in gly hot topic for debate. Rece nt years have 54 ma ny writi ngs on the "scie nee of happ in ess." Richer people are happier because money can help purchase goods and services and it is the —55—of these materials that in creases on e's enjoyme nt of life and on e's sense of well-bei ng. Firebaugh and his colleagues measured the age, total family in come, and generalhapp in ess of —56 _ aged 20 to 64, gen erally con sidered the work ing lifespa n ( 工作寿命)for most America ns.Regardless of such standards as physical health, education, and marital status (婚姻状况),people's happ in ess was affected by what others earn ed. The higher the in come of others in on e's age group, the lower on e's happ in ess.Kitche n duties may have traditi on ally bee n viewed as wome n rk, but no faSthe) White House. Un til now: Cristeta Comerford has been named executive chef (厨师).After an _ 47 six-m onth search, first lady Laura Bush announced Sun day that Comerford was chose n from hun dreds of 48 to head the executive kitche n. A n aturalized U.S. citize n from the Philipp in es, she will be the first woman and first 49 to hold the post. The 42-year-old Comerford has been an assistant chef at the White House for 10 years. She worked under former executive chef Walter Scheib Ill, who 50 in February.Scheib said Sun day that Comerford was 51 the best assista nt he had in his 30-year career and is a won derful choice to take over. He said she is a great cook with an artistic eye and a calm manner that can _52 the pressure cooker (高压锅)in the White House kitchen.Comerford has a bachelor ' s degree in Food Tech no logy from the Uni vensftyne Philipp in es. She has worked at Le Ciel in Vienna, Austria and at restaura nts in two Wash ington hotels.While being executive chef at the White House is hono rable, the job also can be 53 ______ Comerford will be in charge of everything from state dinners for world leaders to dessert for the commander in chief, his family and guests. The head chef is 54 for desig ning and executi ng menus for state dinn ers, social eve nts, holiday functions, recepti ons and official lun che ons (午宴) 55 by the preside nt and first lady. The job pays 56$ 80,000-- $ 100,000 a year.The more time children spend watching television the poorer they perform academically, according to three studies published on Mon day. 47 televisi on view ing has bee n blamed for in creas ing rates of childhood obesity (月肥月半)and for aggressive behavior, while its 48 on schooling have been inconclusive, researchers said.But studies published on the topic in this mon th' s Archives of Pediatrics ( 小儿科)& Adolesce nt Medici ne concluded television viewing 49 to have an adverse effect (副作用)on academic pursuits. For 50 , children who had televisions in their bedrooms--and 51 watched more TV--scored lower on standardizedtests tha n those who did not have sets in their rooms. In con trast, the study found havi ng a home computer with52_to the In temet resulted in comparatively higher test scores."Con siste ntly, those with a bedroom televisi on but no —53—home computer had, on average, the lowest scores and those with home computer but no bedroom televisi on had the highest scores," wrote study author Dina Borzekowski of Joh ns Hopk ins Un iversity. The America n Academy of Pediatrics has 54 pare nts to limit children ' s televisvswing to no more than one to two hours per day--and to try to keep younger children awayfrom TV altogether.In two other studies published in the same journ al, childre n who 55 watched televisi on before the ageof 3 en ded up with lower test scores later on, and childre n and adolesce nts who watched more televisi on were less 56_to go on to finish high school or earn a college degree.(1)47-56 N E O A M L J I G B (2)47-56 G B E I C L N K A M (3)47-56 M C J G A E L I O D (4)47-56 F B J E A K N D L H (5)47-56 C K G A I N D F M O (6)47-56 C N E H A J B K F M (7)47-56 D K B I F H L A O E (8)47-56 J G M K D E B I C F。

四级英语选词填空练习附答案解析四级英语选词填空练习：One in five US workers regularly attends after-work drinks with co-workers, where the most common36 range from bad-mouthing 说……的坏话 another worker to kissing a colleague and drinking toomuch, according to a study37on Tuesday.Most workers attend so-called happy hours to 38 with colleagues, although 15 percent go to hear the latest office gossip and 13 percent go because they feel obligated, said the surveyconducted for CareerBuilder. corn, an online job site.As to what happens when the after-work drinks flow, 16 percent reportedbad-mouthing a colleague, 10 percent shared a secret about a colleague, 8 percent kissed a colleague and 8 percent saidthey drank too much and acted39.5 percent said they had shared a secret about the company, and 4 percent40to singing karaoke.While 21 percent of those who attend say happy hours are good for41,85 percent said attending had not helped them get42to someone higher up or get a better position.An equal number of men and women said they attend happy hours with co-workers, with younger workers aged 25 to 34 most likely and workers over 55 least43to attend.Overall, 21 percent of workers attend happy hours with co-workers and, of those,44a quarter go at least once a month.The survey was45online by Harris Interactive on behalf of CareerBuilder. com among 6,987 full-time employees.选词填空练习题：A. bondB. acknowledgedC. nearlyD. speciallyE. anywhereF. mishapsG. obligatedH. likelyI. conductedJ. idlyK. unprofessionallyL. networkingM . releasedN. confessedO. researched四级英语选词填空练习译文：据本周二[37]发布的一项调查显示，美国有五分之一的员工会定期在下班后跟同事去喝几杯，每当这个时候，诸如说其他同事的坏话、亲吻某位同事以及醉酒等最常见的[36]糗事就要上演了。

四级英语选词填空模拟练习附答案四级英语选词填空模拟练习：In recent years, more and more foreigners are involved in the teaching programs of the United States. Both the advantages and the disadvantages67 using foreign faculty(教师总称)68 teaching positions have to be69 , of course. It can be said that the foreign70 that makes the faculty member from abroad an asset also71 problems of adjustment, both for the university and for the individual. The foreign research scholar usually isolates72 in the laboratory as a means of protection;73 , what he needs is to be fitted 74 a highly organized university system quite different from75 at home. He is faced in his daily work76 differences in philosophy, arrangements of courses and methods of teaching. Both the visiting professor and his students77 a common ground in each others cultures, some78 of what is already in the minds of American students is79 for the foreign professor.While helping him to80 himself to his new environment, the university must also81 certain adjustments in order to82 full advantage of what the newcomer can83 . It isnt always known how to make84 use of foreign faculty, especially at smaller colleges. This is thought to be a85 where further study is called86 . The findings of such a study will be of value to colleges and universities with foreign faculty. 选词填空练习题：67. A) with B) for C) of D) at68. A) in B) on C) for D) within69. A) thought B) measured C) balanced D) considered70. A) situation B) circumstances C) background D) condition71. A) carries B) create C) emerges D) solves72. A) himself B) oneself C) him D) one73. A) otherwiseB) moreover C) however D) whatever74. A) into B) by C) to D) with75. A) those B) which C) what D) that76. A) toward B) with C) to D) at77. A) have B) possess C) need D) lack78. A) concept B) feeling C) plan D) intelligence79. A) ordered B) asked C) put D) required80. A) place B) adapt C) put D) direct81. A) remain B) keep C) make D) cause82. A) take B) make C) do D) be83. A) show B) afford C) express D) offer84. A) powerful B) creative C) imaginary D) advanced85. A) scope B) range C) field D) district86. A) on B) for C) upon D) at四级英语选词填空模拟练习答案详解：67. C本题考查搭配关系。

英语四级真题之选词填空英语四级真题之选词填空无论在学习或是工作中，我们都不可避免地会接触到试题，试题是命题者按照一定的考核目的编写出来的.。

还在为找参考试题而苦恼吗？以下是店铺精心整理的英语四级真题之选词填空，希望对大家有所帮助。

英语四级真题之选词填空1Part III Reading Comprehension (40 minutes)Section ADirections：In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.For decades, Americans have taken for granted the XXXX development of new technologies. The innovations(创新)XXXX opment during World War II and afterwards were(36)_____ to the prosperity of the nation in the second half of the 20th century. Those innovations, upon which virtually all aspects of(37)_____ society now depend, were possible because the United States then(38)_____ the world in mathematics and science education. Today, however, despite increasing demand for workers with strong skills in mathematics and science, the(39)_____ of degrees awarded in science, math, and engineering are decreasing.The deeling in degree production in what are called the STEM disciplines(science, technology, engineering, andmath.)seems to be(40)_____related to the comparatively weak performance by U.S. schoolchildren on international assessments of math and science. Many students entering college have weak skills in mathematics. According to the 2005 report of the Business Higher Education Forum, 22 percent of college freshmen must take remediat(补习的)math(41)_____, and less than half of the students who plan to major in science or engineering(42)_____complete a major in those fields.The result has been a decrease in the number of American college graduates who have the skills, (43)_____ in mathematics, to power a workforce that can keep the country at the forefront(前言)of innovation and maintain its standard of living. With the(44)_____ performance of American students in math and science has come increased competition from students from other countries that have strongly supported education in these areas. Many more students earn(45)_____ in the STEM disciplines in developing countries than in the United States.A.acceleratingB.actuallyC.closelyD.contemporaryE.coursesF.criticalG.decliningH.degreesI.especiallyJ.futureK.ledL.metM.proceduresN.proportionsO.sphetes英语四级真题之选词填空2In a time of low academic achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic success, for possible answers. However, the answers provided by Japanese preschools are not the ones Americans expected to find. In most Japanese preschools, surprisingly little emphasis is put on academic instruction. In one investigation, 300 Japanese and 210 American preschool teachers, child development specialists, and parents were asked about various aspects of early childhood education. Only 2 percent of the Japanese respondents (答问卷者)listed “to give children a good start academically”as one of their top three reasons for a society to have preschools. In contrast, over half the American respondents chose this as one of their top three choices. To prepare children for successful careers in first grade and beyond, Japanese schools do not teach reading, writing, and mathematics, but rather skills such as persistence, concentration, and the ability to function as a member of a group. The vast majority of young Japanese children are taught to read at home by their parents.In the recent comparison of Japanese and American preschool education, 91 percent of Japanese respondents chose providing children with a group experience as one of their top three reasons for a society to have preschools. Sixty-two percent of the more individually oriented (强调个性发展的)Americans listed group experience as one of their top three choices. An emphasis on the importance of the group seen in Japanese early childhood education continues into elementary school education.Like in America, there is diversity in Japanese early childhood education. Some Japanese kindergartens have specific aims, such as early musical training or potential development. In large cities, some kindergartens are attached to universities that have elementary and secondary schools. Some Japanese parents believe that if their young children attend a university-based program, it will increase the children‘s chances of eventually being admitted to top-rated schools and universities. Several more progressive programs have introduced free play as a way out for the heavy intellectualizing in some Japanese kindergartens.16.We learn from the first paragraph that many Americans believe ________.A) Japanese parents are more involved in preschool education than American parentsB) Japan‘s economic success is a result of its scientific achievementsC) Japanese preschool education emphasizes academic instructionD) Japan‘s higher education is superior to theirs17.Most Americans surveyed believe that preschools should also attach importance to ________.A) problem solvingB) group experienceC) parental guidanceD) individually-oriented development18.In Japan‘s preschool education, the focus is on ________.A) preparing children academicallyB) developing children‘s artistic interestsC) tapping children‘s potentialD) shaping children‘s character19.Free play has been introduced in some Japanese kindergartens in order to ________.A) broaden children‘s horizonB) cultivate children‘s creativityC) lighten children‘s study loadD) enrich children‘s knowledge20.Why do some Japanese parents send their children to university -based kindergartens?A) They can do better in their future studies.B) They can accumulate more group experience there.C) They can be individually oriented when they grow up.D) They can have better chances of getting a first-rate education.英语四级真题之选词填空3Section BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Resilience Is About How You Recharge, Not How You Endure[A] As constant travelers and parents of a 2-year-old, we sometimes fantasize about how much work we can do when one of us gets on a plane, undistracted by phones, friends, or movies. We race to get all our ground work done: packing, going through security, doing a last-minute work call, calling each other, then boarding the plane. Then, when we try to have that amazing worksession in flight, we get nothing done. Even worse, after refreshing our email or reading the same studies over and over, we are too exhausted when we land to soldier on with (继续处理) the emails that have inevitably still piled up.[B] Why should flying deplete us? We’re just sitting there doing nothing. Why can’t we be tougher, more resilient (有复原力的) and determined in our work so we can accomplish all of the goals we set for ourselves? Based on our current research, we have come to realize that the problem is not our hectic schedule or the plane travel itself; the problem comes from a misconception of what it means to be resilient, and the resulting impact of overworking.[C] We often take a militaristic, “tough” approach to resilience and determination like a Marine pulling himself through the mud, a boxer going one more round, or a football player picking himself up off the ground for one more play. We believe that the longer we tough it out, the tougher we are, and therefore the more successful we will be. However, this entire conception is scientifically inaccurate.[D] The very lack of a recovery period is dramatically holding back our collective ability to be resilient and successful. Research has found that there is a direct correlation between lack of recovery and increased incidence of health and safety problems. And lack of recovery—whether by disrupting sleep with thoughts of work or having continuous cognitive arousal by watching our phones—is costing our companies $62 billion a year in lost productivity.[E] And just because work stops, it doesn’t mean we are recovering. We “stop” work sometimes at 5pm, but then we spend the night wrestling with solutions to work problems,talking about our work over dinner, and falling asleep thinking about how much work we’ll do tomorrow. In a study just released, researchers from Norway found that 7.8% of Norwegians have become workaholics(工作狂). The scientists cite a definition of “workaholism” as “being overly concerned about work, driven by an uncontrollable work motivation, and investing so much time and effort in work that it impairs other important life areas.”[F] We believe that the number of people who fit that definition includes the majority of American workers, which prompted us to begin a study of workaholism in the U.S. Our study will use a large corporate dataset from a major medical company to examine how technology extends our working hours and thus interferes with necessary cognitive recovery, resulting in huge health care costs and turnover costs for employers.[G] The misconception of resilience is often bred from an early age. Parents trying to teach their children resilience might celebrate a high school student staying up until 3am to finish a science fair project. What a distortion of resilience! A resilient child is a well-rested one. When an exhausted student goes to school, he risks hurting everyone on the road with his impaired driving; he doesn’t have th e cognitive resources to do well on his English test; he has lower self-control with his friends; and at home, he is moody with his parents. Overwork and exhaustion are the opposite of resilience and the bad habits we acquire when we’re young only magnify when we hit the workforce.[H] As Jim Loehr and Tony Schwartz have written, if you have too much time in the performance zone, you need more time in the recovery zone, otherwise you risk burnout. Gathering your resources to “try hard” requires burning ener gy in order toovercome your currently low arousal level. It also worsens exhaustion. Thus the more imbalanced we become due to overworking, the more value there is in activities that allow us to return to a state of balance. The value of a recovery period rises in proportion to the amount of work required of us.[I] So how do we recover and build resilience? Most people assume that if you stop doing a task like answering emails or writing a paper, your brain will naturally recover, so that when you start a gain later in the day or the next morning, you’ll have your energy back. But surely everyone reading this has had times when you lie in bed for hours, unable to fall asleep because your brain is thinking about work. If you lie in bed for eight hours, you may have rested, but you can still feel exhausted the next day. That’s because rest and recovery are not the same thing.[J] If you’re trying to build resilience at work, you need adequate internal and external recovery periods. As researchers Zijlstra, Cro pley and Rydstedt write in their 2014 paper: “Internal recovery refers to the shorter periods of relaxation that take place within the frames of the work day or the work setting in the form of short scheduled or unscheduled breaks, by shifting attention or changing to other work tasks when the mental or physical resources required for the initial task are temporarily depleted or exhausted. External recovery refers to actions that take place outside of work—e.g. in the free time between the work days, and du ring weekends, holidays or vacations.” If after work you lie around on your bed and get irritated by political commentary on your phone or get stressed thinking about decisions about how to renovate your home, your brain has not received a break from high mental arousal states. Our brains need a rest as much as our bodies do.[K] If you really want to build resilience, you can start by strategically stopping. Give yourself the resources to be tough by creating internal and external recovery periods. Amy Blankson describes how to strategically stop during the day by using technology to control overworking. She suggests downloading the Instant or Moment apps to see how many times you turn on your phone each day. You can also use apps like Offtime or Unplugged to create tech free zones by strategically scheduling automatic airplane modes. The average person turns on their phone 150 times every day. If every distraction took only 1 minute, that would account for 2.5 hours a day.[L] In addition, you can take a cognitive break every 90 minutes to charge your batteries. Try to not have lunch at your desk, but instead spend time outside or with your friends—not talking about work. Take all of your paid time off, which not only gives you recovery periods, but raises your productivity and likelihood of promotion.[M] As for us, we’ve started using our plane time as a work-free zone, and thus time to dip into the recovery phase. The results have been fantastic. We are usually tired already by the time we get on a plane, and the crowded space and unstable internet connection make work more challenging. Now, instead of swimming upstream, we relax, sleep, watch movies, or listen to music. And when we get off the plane, instead of being depleted, we feel recovered and ready to return to the performance zone.36. It has been found that inadequate recovery often leads to poor health and accidents.37. Mental relaxation is much needed, just as physical relaxation is.38. Adequate rest not only helps one recover, but alsoincre ases one’s work efficiency.39. The author always has a hectic time before taking a flight.40. Recovery may not take place even if one seems to have stopped working.41. It is advised that technology be used to prevent people from overworking.42. Contrary to popular belief, rest does not equal recovery.43. The author has come to see that his problem results froma misunderstanding of the meaning of resilience.44. People’s distorted view about resilience may have developed from their upbringing.45. People tend to think the more determined they are, the greater their success will be.英语四级真题之选词填空4Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold orflu (流感)may make a difference in how long the misery lasts.The American Lung Association (ALA) has issued new guidelines on combating colds and the flu, and one of the keys is being able to quickly tell the two apart. That‘s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come.The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses—flu A, B and C. There is no cure for either illness, but the flu can be prevented by the flu vaccine (疫苗), which is, for most people, the best way to fight the flu, according to the ALA.But if the flu does strike, quick action can help. Although theflu and common cold have many similarities, there are some obvious signs to look for.Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms.The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms.Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome (综合症)， a rare but serious condition of the liver and central nervous system.There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one.11.According to the author, knowing the cause of the misery will help ________.A) shorten the duration of the illnessB) the patient buy medicine over the counterC) the patient obtain cheaper prescription drugsD) prevent people from catching colds and the flu12.We learn from the passage that ________.A) one doesn‘t need to take any medicine if he has a cold or the fluB) aspirin should not be included in over-the-counter medicines for the fluC) delayed treatment of the flu will harm the liver and central nervous systemD) over-the-counter drugs can be taken to ease the misery caused by a cold or the flu13.According to the passage, to combat the flu effectively, ________.A) one should identify the virus which causes itB) one should consult a doctor as soon as possibleC) one should take medicine upon catching the diseaseD) one should remain alert when the disease is spreading14.Which of the following symptoms will distinguish the flu from a cold?A) A stuffy nose.B) A high temperature.C) A sore throat.D) A dry cough15.If children have flu-like symptoms, their parents ________.A) are advised not to give them aspirinB) should watch out for signs of Reye syndromeC) are encouraged to take them to hospital for vaccinationD) should prevent them from mixing with people running a fever英语四级真题之选词填空5Lead deposits, which accumulated in soil and snow during the 1960‘s and 70‘s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.A study published recently in the journal Nature shows thatair-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的)snow were declining.In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (区分)the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.In a study published in the journal Ambio, scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline.Many scientists had believed that the lead would stay in soil and snow for a longer period.The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990 The forest environment processed and redistributed the lead faster than the scientists had expected.Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统)respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.21.The study published in the journal Nature indicates that ________.A) the Clean Air Act has not produced the desired resultsB) lead deposits in arctic snow are on the increaseC) lead will stay in soil and snow longer than expectedD) the US is the major source of lead pollution in arctic snow22.Lead accumulation worldwide decreased significantly after the use of unleaded gas in the US ________.A) was discouragedB) was enforced by lawC) was prohibited by lawD) was introduced23.How did scientists discover the source of lead pollution in Greenland?A) By analyzing the data published in journals like Nature and Ambio.B) By observing the lead accumulations in different parts of the arctic area.C) By studying the chemical elements of soil and snow in Northeastern America.D) By comparing the chemical compositions of leaded gasoline used in various countries.24.The authors of the Ambio study have found that ________.A) forests get rid of lead pollution faster than expectedB) lead accumulations in forests are more difficult to deal withC) lead deposits are widely distributed in the forests of the USD) the upper layers of soil in forests are easily polluted by lead emissions25.It can be inferred from the last paragraph that scientists ________.A) are puzzled by the mystery of forest pollutionB) feel relieved by the use of unleaded gasolineC) still consider lead pollution a problemD) lack sufficient means to combat lead pollution 下载全文。